oj.uz

Submission #137660

# Submission time Handle Problem Language Result Execution time Memory
137660 2019-07-28T08:21:21 Z 송준혁(#3282) Countries (BOI06_countries) C++14
100 / 100
 5 ms 380 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef pair<LL,LL> pii;

int N;
int X[1010], Y[1010], S[1010], C[1010];
bool D[1010];
pii R[1010], M[1010];

inline LL Sq(LL x){return x*x;}

int main(){
	scanf("%d", &N);
	for (int i=1; i<=N; i++){
		scanf("%d %d %d", &X[i], &Y[i], &S[i]);
		R[i] = pii(S[i], i);
		M[i] = pii(S[i], 1), C[i] = i;
	}
	sort(R+1, R+N+1, greater<pii>());
	for (int i=1; i<=N; i++){
		int t = R[i].second;
		if (D[t]) C[t] = t;
		for (int j=1; j<=N; j++){
			if (j == t) continue;
			if (M[j].first*(Sq(X[t]-X[j])+Sq(Y[t]-Y[j])) < S[t]*M[j].second){
				M[j] = pii(S[t], Sq(X[t]-X[j])+Sq(Y[t]-Y[j]));
				C[j] = C[t], D[j] = false;
			}
			else if (M[j].first*(Sq(X[t]-X[j])+Sq(Y[t]-Y[j])) == S[t]*M[j].second && C[j] != j) D[j] = true;
		}
	}
	for (int i=1; i<=N; i++){
		if (D[i]) puts("D");
		else if (C[i] == i) puts("K");
		else printf("%d\n", C[i]);
	}
	return 0;
}

Compilation message

countries.cpp: In function 'int main()':
countries.cpp:14:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
countries.cpp:16:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d", &X[i], &Y[i], &S[i]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 380 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 4 ms 376 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 4 ms 376 KB Output is correct
18 Correct 4 ms 364 KB Output is correct
19 Correct 4 ms 380 KB Output is correct
20 Correct 5 ms 376 KB Output is correct